WO2017168908A1 - Écrou en plastique thermoplastique, dispositif de soudage d'écrou et procédé de soudage d'écrou - Google Patents

Écrou en plastique thermoplastique, dispositif de soudage d'écrou et procédé de soudage d'écrou Download PDF

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Publication number
WO2017168908A1
WO2017168908A1 PCT/JP2016/089154 JP2016089154W WO2017168908A1 WO 2017168908 A1 WO2017168908 A1 WO 2017168908A1 JP 2016089154 W JP2016089154 W JP 2016089154W WO 2017168908 A1 WO2017168908 A1 WO 2017168908A1
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WIPO (PCT)
Prior art keywords
nut
thermoplastic
thin
welding
central axis
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Ceased
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PCT/JP2016/089154
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English (en)
Japanese (ja)
Inventor
朗 井加田
太一 上原
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Mitsubishi Heavy Industries Ltd
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Mitsubishi Heavy Industries Ltd
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Priority to EP16897123.2A priority Critical patent/EP3401558B1/fr
Priority to CN201680083481.4A priority patent/CN108884855B/zh
Priority to US16/082,003 priority patent/US11168725B2/en
Publication of WO2017168908A1 publication Critical patent/WO2017168908A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/561—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using screw-threads being integral at least to one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/567—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using a tamping or a swaging operation, i.e. at least partially deforming the edge or the rim of a first part to be joined to clamp a second part to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/567—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using a tamping or a swaging operation, i.e. at least partially deforming the edge or the rim of a first part to be joined to clamp a second part to be joined
    • B29C65/568—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using a tamping or a swaging operation, i.e. at least partially deforming the edge or the rim of a first part to be joined to clamp a second part to be joined using a swaging operation, i.e. totally deforming the edge or the rim of a first part to be joined to clamp a second part to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/72—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
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    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B29C66/81419—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled and flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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    • B29C66/80—General aspects of machine operations or constructions and parts thereof
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    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
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    • B29C66/81422—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being convex
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/94—Measuring or controlling the joining process by measuring or controlling the time
    • B29C66/942—Measuring or controlling the joining process by measuring or controlling the time by measuring the time
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00—Features common to bolt and nut
    • F16B33/006—Non-metallic fasteners using screw-thread
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
    • F16B37/06—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting
    • F16B37/061—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2001/00—Articles provided with screw threads
    • B29L2001/002—Bolts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2001/00—Articles provided with screw threads
    • B29L2001/005—Nuts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/026—Locking of screws, bolts or nuts in which the locking takes place after screwing down by swaging the nut on the bolt, i.e. by plastically deforming the nut

Definitions

  • the present invention relates to a thermoplastic nut, a nut welding device, and a nut welding method.
  • a fastening mechanism using bolts and nuts may be provided with a loosening prevention mechanism so that the nut does not loosen during long-term operation.
  • a cotter pin or a wire may be used in order to prevent a metal nut from loosening from a metal bolt.
  • the split pin or the wire connects between the metal bolt and the metal nut, and the connection prevents the nut from loosening.
  • a split pin or a wire is applied after the nut is attached, the work process is increased and the cost is increased.
  • a technique is known in which an external force is applied to the outer peripheral surface of the nut and the nut (particularly, the thread portion of the nut) is plastically deformed before the nut is attached.
  • Patent Document 1 describes a nut with a deformable cylindrical portion and a nut caulking tool. Patent Document 1 describes that after a nut is fixed to an output shaft, a deformable cylindrical portion is caulked with a caulking tool. By the caulking, the nut is crimped to the output shaft.
  • Patent Document 2 describes a meltable plastic fastener.
  • a nut with an extending surface is welded to a screwless bolt having a cylindrical surface, thereby fixing the nut to the bolt.
  • An object of the present invention is to provide a thermoplastic plastic nut, a nut welding device, and a nut welding method that can easily prevent the nut from loosening.
  • the thermoplastic nut includes a nut body portion having a second thread threadedly engaged with the first thread thread of the bolt, and a first body shaft extending from the nut body portion along a central axis of the nut body portion. A thin portion that protrudes in one direction and can be welded to the first thread.
  • the material of the nut body includes a thermoplastic resin. Moreover, the material of the said thin part contains a thermoplastic resin.
  • the thin part may include a plurality of thin pieces.
  • the plurality of thin-walled pieces may be arranged at intervals around the central axis.
  • the thin portion may be annular.
  • the outer surface of the thin wall portion may be a surface whose distance from the central axis decreases stepwise or continuously along the first direction.
  • the nut welding device in some embodiments is a nut welding device used to weld a thermoplastic nut to the first thread of the bolt.
  • the nut welding device includes a power supply unit and a welding device main body.
  • the welding apparatus main body includes a distal portion having an inner surface that contacts an outer surface of the nut upper portion, and an energy generating portion that generates energy to be transmitted to the outer surface of the nut upper portion.
  • the inner side surface is a surface whose distance from the central axis of the welding apparatus main body decreases as it goes upward.
  • the distal portion may include a plurality of protrusions protruding toward the central axis.
  • the said welding apparatus main-body part may supply energy to the said nut made from a thermoplastic via the said some protrusion part.
  • the distal portion may include a guide member that contacts the outer surface of the nut body.
  • the nut welding device may further include a rotation mechanism that rotates at least a part of the guide member around the central axis.
  • the method of welding a nut includes an attaching step of attaching a thermoplastic nut to a thermoplastic bolt, and a welding apparatus main body contacting an upper portion of the nut that is an upper portion of the thermoplastic nut.
  • the upper portion of the nut may be a thin portion protruding upward from the nut main body.
  • thermoplastic plastic nut a nut welding device, and a nut welding method that can easily prevent the nut from loosening.
  • FIG. 1 is a schematic cross-sectional view showing a state in which two members to be fastened are fastened using a thermoplastic nut and bolt in the embodiment.
  • FIG. 2 is a schematic cross-sectional view showing a state in which two members to be fastened are fastened using the thermoplastic nut and bolt in the embodiment.
  • Drawing 3 is a figure showing typically the nut made from thermoplastics in an embodiment.
  • FIG. 4 is a flowchart showing a nut welding method.
  • FIG. 5 is a schematic cross-sectional view showing a state before a thermoplastic nut is welded to a bolt.
  • FIG. 6 is a schematic sectional view showing a state after a thermoplastic nut is welded to a bolt.
  • FIG. 1 is a schematic cross-sectional view showing a state in which two members to be fastened are fastened using a thermoplastic nut and bolt in the embodiment.
  • FIG. 2 is a schematic cross-sectional view showing a state in which two members to be fastened
  • FIG. 7 is a schematic sectional view showing a state after a thermoplastic nut is welded to a bolt.
  • FIG. 8 is a diagram schematically illustrating a nut welding device according to the embodiment.
  • FIG. 9 is a diagram schematically showing a nut welding device in the first modification.
  • FIG. 10 is a schematic perspective view of the welding apparatus main body as viewed obliquely from below.
  • FIG. 11 is a diagram schematically showing a nut welding device in the second modification.
  • FIG. 12 is a diagram schematically showing a nut welding device in the third modification.
  • FIG. 13 is a functional block diagram schematically showing an outline of control by the control device.
  • FIG. 14 is a view schematically showing a thermoplastic nut in the first modification.
  • FIG. 15: is a schematic perspective view which shows typically a mode that the nut made from the thermoplastic plastic in a 1st modification is welded to a volt
  • thermoplastic plastic nut a nut welding device, and a nut welding method according to the embodiment will be described with reference to the accompanying drawings.
  • the same reference numerals are given to components having the same function. A repetitive description of components having the same reference numerals will be omitted.
  • first One direction the direction from the bolt head 3a toward the bolt shaft 3b (in other words, the direction along the central axis of the nut main body and from the nut main body toward the thin portion of the nut) is referred to as “first One direction "is defined.
  • “upward” corresponds to the first direction. That is, in the present specification, in reality, even when the first direction does not coincide with the vertically upward direction, the “first direction” is defined as being upward.
  • secondward means the direction opposite to “upward”.
  • FIG. 1 is a schematic sectional view showing a state in which a fastened member 4 and a fastened member 5 are fastened using a thermoplastic plastic nut 1 and a bolt 3.
  • the thermoplastic nut 1 includes a nut body 10 and a thin portion 14.
  • the thickness of the thin portion 14 in the direction perpendicular to the central axis C is thinner than the thickness of the nut body portion 10 in the direction perpendicular to the central axis C.
  • the central axis C is the central axis of the nut body 10, and the central axis C coincides with the central axis of the bolt 3.
  • the nut body 10 includes a second thread 12 that is screwed into a first thread 32 of a bolt 3 (for example, a thermoplastic bolt). By rotating the nut body 10 relative to the bolt 3 around the central axis C, the second thread 12 of the nut body 10 and the first thread 32 of the bolt 3 are screwed together. .
  • the thin wall portion 14 protrudes upward from the nut main body portion 10. In other words, the thin portion 14 protrudes from the nut body portion 10 in the first direction along the central axis C.
  • Energy (vibration energy or thermal energy) is applied to the thin portion 14. At least a part of the thin portion 14 is welded to the first thread 32 of the bolt 3 by melting (softening) upon receiving energy.
  • the material of the nut main body portion 10 includes a thermoplastic resin
  • the material of the thin wall portion 14 includes a thermoplastic resin.
  • the material of the nut body 10 and the material of the thin portion 14 are the same.
  • the nut main-body part 10 and the thin part 14 are integrally molded.
  • the material of the nut main body part 10 and the thin part 14 is, for example, polyetheretherketone resin (PEEK resin).
  • the nut body 10 is made of a thermoplastic resin. For this reason, weight reduction of a nut is realized. Moreover, the thin part of a nut contains a thermoplastic resin. Therefore, by heating the thin portion, the thin portion is easily softened, and the thin portion of the nut is welded to the bolt. As a result, the nut can be prevented from loosening. Moreover, since the part to be heated is a thin part, less energy is required for heating. Further, when the nut is welded, the amount of deformation of the nut main body is small, so that there is little generation of burrs and free matter, and the nut after welding has a good appearance.
  • the fastened member 4 and the fastened member 5 are plate members made of FRP (made of fiber reinforced plastic), respectively, but the material of the fastened member 4 and the fastened member 5 and The shape is arbitrary.
  • the thin portion 14 is also provided with a thread (third thread 16).
  • a thread may not be provided on the inner surface of the thin portion 14.
  • the inner surface of the lower region of the thin portion 14 may be provided with a screw thread, and the inner surface of the upper region of the thin portion 14 may not be provided with a screw thread.
  • the third thread 16 is provided on the thin portion 14, the thin portion 14 can be welded to the first thread 32 of the bolt 3 with a small amount of deformation. Therefore, it is preferable that the thin portion 14 is provided with the third thread 16.
  • thermoplastic nut 1 in the embodiment will be described in more detail with reference to FIG. 3 is a plan view of the thermoplastic nut 1 and the lower side of FIG. 3 is a side view of a virtual half of the thermoplastic nut 1.
  • the nut main body 10 includes an upper surface 13a, a lower surface 13b, and a side surface 13c in addition to the second thread 12 provided on the inner peripheral surface of the nut main body.
  • the upper surface 13a constitutes a shoulder portion of the nut.
  • the upper surface 13a may function as a stopper portion that restricts movement along a central axis C of a welding apparatus main body 400 described later.
  • the lower surface 13b is a flat surface and is a surface on the side in contact with the fastened member.
  • the side surface 13c is a surface with which a tool such as a wrench or a guide member 470 described later can be engaged.
  • the shape of the cross section perpendicular to the central axis C of the side surface 13c is a hexagon.
  • the thin portion 14 is an annular thin portion.
  • the thin portion 14 includes a third thread 16 on its inner peripheral surface.
  • the third thread 16 is a thread that continuously extends from the second thread 12 of the nut body 10.
  • the thin portion 14 includes an outer side surface 17 (in other words, an outer peripheral surface) and an upper surface 18.
  • the outer surface 17 is an annular surface with which a welding apparatus main body 400 described later contacts. More specifically, the outer surface 17 is an annular surface whose distance from the central axis C decreases stepwise or continuously as it goes upward. In other words, the outer surface 17 is an annular surface that decreases in diameter as it goes upward. For this reason, first, when the welding apparatus main body 400 described later is moved in a second direction opposite to the first direction, the central axis of the welding apparatus main body 400 and the central axis of the thin portion 14 are arranged. It becomes easy to align between the two. Second, as shown in FIG. 5 and FIG. 6, as the welding apparatus main body 400 moves in the second direction, the melting target region does not increase rapidly but gradually increases. .
  • the movement of the welding apparatus main-body part 400 can be performed smoothly.
  • a pressure in a direction toward the central axis C is applied to the thin portion 14. For this reason, welding of the thin portion 14 to the bolt 3 is promoted.
  • the outer surface 17 is an annular surface whose distance from the central axis C decreases as it goes upward, at least the three effects described above are produced as a synergistic effect.
  • the angle formed between the outer surface 17 and the central axis C increases stepwise as it goes upward.
  • the inclination angle is an angle formed between the tangent to the outer surface 17 and the central axis C in a cross section passing through the central axis C.
  • the outer surface 17 includes an upper inclined surface 17 a and a lower inclined surface 17 b.
  • the inclination angle ⁇ 2 of the upper inclined surface 17a is larger than the inclination angle ⁇ 1 of the lower inclined surface 17b.
  • the angle (inclination angle) formed between the outer surface 17 and the central axis C is set to increase stepwise as it goes upward, so that the outer surface 17 becomes the central recess of the welding apparatus main body 400. It becomes easy to enter 420 (refer FIG. 5).
  • the welding apparatus main body 400 quickly contacts the upper region (for example, the upper inclined surface 17a) of the outer surface 17, so that the central axis of the welding apparatus main body 400 and the central axis of the thin portion 14 are reduced. Alignment between them is performed quickly.
  • the angle formed between the outer surface 17 and the central axis C may be continuously increased toward the upper side. That is, the cross section of the outer surface (the cross section in the plane passing through the central axis C) may include a curve. Alternatively, the cross section of the outer surface (the cross section in the plane passing through the central axis C) may include a curve and a straight line.
  • the height H1 of the thin portion 14 (in other words, the distance between the upper surface 18 of the thin portion 14 and the upper surface 13a of the nut body portion 10) is, for example, equal to or greater than the width of one screw thread (in other words, the second screw thread). 12 pitches or more, that is, when the nut is rotated once around the central axis C, the nut moves along the central axis C) and less than the width of five threads (in other words, 5 times or less of the pitch of the second thread 12, that is, 5 times or less of the distance the nut moves along the central axis C when the nut is rotated once around the central axis C). If the height H1 is smaller than the width of one thread, the welding area may be insufficient.
  • the height H1 is larger than the width of the five threads, the inclination angle of the outer surface becomes small, and there is a possibility that the welding apparatus main body 400 cannot be smoothly guided. Further, if the height H1 is larger than the width of the five threads, the protruding amount from the upper surface 13a of the nut body portion may be excessive. As a result, there is a possibility that the thin shaft portion and the bolt shaft portion 3b to which the thin wall portion is welded become an obstacle.
  • the maximum value of the thickness of the thin portion 14 is, for example, the thickness of the nut (in other words, 2/3 or less of (the width of two surfaces of the nut main body 10 ⁇ the diameter of the prepared hole of the nut main body 10) / 2).
  • “Two face width” means the distance between two opposite sides of the hexagon (the distance between the first side face 13c-1 and the second side face 13c-2 in FIG. 3).
  • FIG. 4 is a flowchart showing a nut welding method.
  • FIG. 5 is a schematic cross-sectional view showing a state before the thermoplastic nut 1 is welded to the bolt 3
  • FIG. 6 is a schematic cross-section showing a state after the thermoplastic nut 1 is welded to the bolt 3.
  • FIG. 5 is a schematic cross-sectional view showing a state before the thermoplastic nut 1 is welded to the bolt 3
  • FIG. 6 is a schematic cross-section showing a state after the thermoplastic nut 1 is welded to the bolt 3.
  • thermoplastic nut 1 is attached to the thermoplastic bolt 3. As shown in FIG.
  • the welding apparatus main body 400 moves downward so that the welding apparatus main body 400 contacts the nut upper portion which is the upper portion of the thermoplastic nut 1. Is done.
  • the third step S 3 energy is transmitted from the welding apparatus main body 400 to the upper part of the nut, so that the upper part of the nut is welded to the first thread 32 of the bolt 3. More specifically, in the third step S3, energy is transmitted from the distal portion 410 of the welding apparatus main body 400 to the outer surface of the upper portion of the nut.
  • a pressure in a direction toward the central axis C of the nut body 10 is applied to the outer surface of the nut upper portion via the inner surface 411 of the distal portion 410 of the welding apparatus body 400. The The pressure is generated due to the shape of the inner surface 411 of the welding apparatus main body 400. The specific shape of the inner side surface 411 will be described later.
  • the lower part of the nut is the nut body part 10, and the upper part of the nut is the thin part 14 protruding upward from the nut body part 10.
  • the outer surface of the nut upper portion is the outer surface 17 of the thin portion 14.
  • the upper part of the nut may be an upper part of the nut body part 10
  • the lower part of the nut may be a lower part of the nut body part 10.
  • the deformation of the nut main body is large and the appearance is bad.
  • FIGS. 5 and 6 are more preferable than the example shown in FIG.
  • the minimum diameter D2 of the inner surface 411 of the distal part 410 of the welding apparatus main-body part 400 is demonstrated.
  • the minimum diameter D2 of the inner side surface 411 that is a portion in contact with the outer side surface 17 of the thin portion 14 is smaller than the maximum outer diameter D1 of the outer side surface 17 of the thin portion 14. For this reason, the outer side surface 17 of the thin part 14 and the inner side surface 411 of the welding apparatus main body part 400 are in reliable contact, and energy can be applied to the thin part 14 via the inner side surface 411.
  • the minimum diameter D ⁇ b> 2 of the inner side surface 411 is larger than the distance D ⁇ b> 3 (screw portion outer diameter) between the valley portions of the second screw thread 12 of the nut body 10. For this reason, the risk that the inner surface 411 directly contacts the first thread 32 of the bolt 3 is small. In this case, the deformation amount of the first thread 32 of the bolt 3 is reduced, and the appearance after welding of the thermoplastic nut 1 is good.
  • the minimum diameter D2 of the inner side surface 411 may be smaller than the outer diameter D4 (thread portion outer diameter) of the first thread 32 of the bolt 3. In this case, when the inner side surface 411 is in direct contact with the first thread 32 of the bolt 3, the first thread 32 is also reliably melted (softened). As a result, the loosening of the thermoplastic nut 1 from the bolt 3 is more reliably prevented.
  • the distal portion 410 of the welding apparatus main body 400 includes a far end surface 415 that can contact the upper surface 13 a of the nut main body 10.
  • the far end surface 415 is an annular end surface.
  • the distal portion 410 of the welding device main body 400 moves in the second direction, the far end surface 415 contacts the upper surface 13a of the nut main body 10.
  • the distal portion 410 of the welding apparatus main body 400 is positioned.
  • the melting range (softening range) of the thermoplastic nut 1 by the welding apparatus main body 400 is suitably limited.
  • FIG. 8 A schematic cross-sectional view of the nut welding device is described on the upper side of FIG. 8, and a bottom view of the welding device main body 400 is described on the lower side of FIG.
  • the nut welding device 40 includes a welding device main body 400 and a power supply unit 401.
  • the welding apparatus main body 400 and the power supply unit 401 are connected via a power cable 402.
  • the welding apparatus main body 400 may include a power supply unit such as a battery.
  • the welding apparatus main body 400 includes a distal portion 410 that contacts the nut 1 made of thermoplastic.
  • the distal portion 410 is provided with a central recess 420.
  • the central recess 420 accommodates the end of the bolt shaft portion 3b and a part of the nut 1 made of thermoplastic plastic.
  • the distal portion 410 includes an inner surface 411, a central recess bottom surface 412, a far end surface 415, and an outer surface 416.
  • the inner side surface 411 is a surface that contacts the outer surface of the nut upper portion (for example, the outer surface of the thin portion 14) when the nut welding device 40 is used.
  • the distal portion 410 includes an energy generating portion 417 that generates energy transmitted to the outer surface of the nut upper portion.
  • the energy generation unit 417 is, for example, a heater, an ultrasonic vibrator, or the like. In the example illustrated in FIG. 8, the energy generation unit 417 is disposed so as to face the inner side surface 411. Alternatively or additionally, the entire distal portion 410 may be an energy generating portion 417 (eg, an ultrasonic transducer).
  • the inner surface 411 increases in the upward direction (from the distal portion of the welding device main body 400 toward the proximal portion of the welding device main body 400), and the central axis of the welding device main body 400. It is a surface where the distance from C1 becomes small.
  • the inner side surface 411 includes a surface that gradually decreases in diameter as it goes upward. For this reason, it becomes easy to guide the thermoplastic nut 1 into the center recess 420. Further, when the outer side surface of the thermoplastic nut 1 (for example, the outer side surface of the thin wall portion 14) is in contact with the inner side surface 411, the outer side surface of the thermoplastic nut 1 is in the direction toward the central axis. Pressure will be applied. As a result, the thermoplastic nut 1 is more reliably welded to the bolt 3.
  • the angle (inclination angle) formed between the inner side surface 411 and the central axis C1 becomes smaller stepwise or continuously as it goes upward.
  • the inclination angle is an angle formed between the tangent to the inner surface 411 and the central axis C1 in a cross section passing through the central axis C1.
  • the inner side surface 411 includes a first inner side surface 411a (upper inner side surface), a second inner side surface 411b (intermediate inner side surface), and a third inner side surface 411c (lower inner side surface).
  • the inclination angle (0 degree in the example shown in FIG.
  • the first inner side surface 411a is smaller than the inclination angle ⁇ 3 of the second inner side surface 411b. Further, the inclination angle ⁇ 3 of the second inner side surface 411b is smaller than the inclination angle ⁇ 4 of the third inner side surface 411c. Therefore, in the example shown in FIG. 8, it becomes much easier to guide the thermoplastic nut 1 inside the central recess 420.
  • each of the second inner side surface 411b and the third inner side surface 411c is an annular tapered surface.
  • the inner side surface 411 may be a curved surface that expands in a trumpet shape as it goes downward.
  • a nut protection member 419 is disposed so as to face the far end surface 415.
  • the nut protection member 419 is a member that prevents energy from being transmitted to the upper surface 13a of the thermoplastic nut 1.
  • the nut protection member 419 may be, for example, a heat insulating member that prevents heat energy from being transmitted to the upper surface 13a, or a buffer member (for example, an elastic member) that prevents vibration energy from being transmitted to the upper surface 13a. ).
  • FIG. 9 is a schematic cross-sectional view of the nut welding device (cross-sectional view taken along the line AA in the lower view of FIG. 9), and the lower side of FIG. The figure is described.
  • FIG. 10 is a schematic perspective view of the welding apparatus main body 400 when viewed obliquely from below.
  • the shape of the distal portion 410 of the welding device main body 400 is different from the shape of the distal portion 410 in the nut welding device 40 shown in FIG.
  • the nut welding device 40 in the first modification is the same as the nut welding device 40 shown in FIG.
  • the distal portion 410 in the example shown in FIG. 9, a part of the inner surface 411 is retracted in a direction away from the central axis C1. That is, the distal portion 410 has a plurality of protrusions 430 (first protrusion 430-1, second protrusion 430-2, third protrusion 430-3, and fourth protrusion) that protrude toward the central axis C1. Part 430-4).
  • the plurality of protrusions 430 are arranged at intervals around the central axis C1.
  • the plurality of protrusions 430 are preferably arranged at equal intervals around the central axis C1.
  • a recess 440 is provided between adjacent protrusions that defines a surface that is retracted in a direction away from the central axis C1.
  • a plurality of concave portions 440 (a first concave portion 440-1, a second concave portion 440-2, a third concave portion 440-3, a fourth concave portion 440-4, etc.) are provided around the central axis C1. They are arranged at intervals.
  • the plurality of recesses 440 may be arranged at equal intervals around the central axis C1.
  • the protruding portion 430 is a portion that comes into contact with the thin portion 14 of the thermoplastic plastic nut 1 when the nut is welded.
  • the bottom surfaces 441-1 to 441-4 of the concave portion 440 (in other words, the surface of the inner side surface 411 that recedes away from the central axis C1) are thin-walled portions of the thermoplastic nut 1 at the time of nut welding.
  • 14 is a portion that does not contact 14, or a portion in which contact is suppressed. Therefore, when the number of protrusions 430 is N (N is an arbitrary natural number equal to or greater than 1), energy is transferred from the welding apparatus main body 400 to the thermoplastic nut 1 via the N protrusions 430. Will be supplied.
  • the nut 1 made of thermoplastic plastic is welded to the bolt 3 at N locations.
  • the contact area between the inner side surface 411 of the welding apparatus main body 400 and the thin part 14 of the thermoplastic nut 1 is smaller than in the example shown in FIG. 8. Become. For this reason, the deformation amount of the thin portion 14 at the time of nut welding becomes small, and the appearance after the nut welding is good.
  • the number of protrusions 430 is four, but the number of protrusions 430 may be one, two, three, or five or more. . However, when the number of protrusions is 5 or more, 7 or more, or 9 or more, the area of the welded portion formed by each protrusion may be small. As a result, the thin-walled portion may be easily peeled off from the bolt 3 after welding. When the number of protrusions is one, the arrangement of the protrusions must be asymmetric with respect to the central axis C1. From the above viewpoint, the number of the protrusions 430 is preferably 2 or more and 8 or less, more preferably 2 or more and 6 or less, and still more preferably 2 or more and 4 or less.
  • the inclination angle of the inner surface of the protrusion 430 may be the same as the inclination angle of the inner surface 411 in the example illustrated in FIG. That is, the angle (inclination angle) formed between the inner surface of the protrusion 430 and the central axis C1 may be reduced stepwise or continuously as it goes upward.
  • the inclination angle of the first inner side surface 411a-1 (0 degree in the example shown in FIG. 9) may be smaller than the inclination angle ⁇ 3 of the second inner side surface 411b-1.
  • the inclination angle ⁇ 3 of the second inner side surface 411b-1 may be smaller than the inclination angle ⁇ 4 of the third inner side surface 411c-1.
  • FIG. 11 is a schematic cross-sectional view of the nut welding apparatus (a cross-sectional view taken along the line BB in the lower view of FIG. 11), and the lower side of FIG. The figure is described.
  • FIG. 11 is different from the example shown in FIG. 8 in that a guide member 470 is provided at the distal portion 410 of the welding apparatus main body 400.
  • the example shown in FIG. 11 is the same as the example shown in FIG.
  • the guide member 470 includes a guide member inner side surface 471.
  • the guide member inner surface 471 has a shape complementary to the shape of the outer surface of the nut body 10. For this reason, the central axis C1 of the welding apparatus main body 400 and the central axis of the thermoplastic nut 1 can be made to coincide with each other only by arranging the guide member 470 outside the nut main body 10. Further, the nut main body 10 can be used as a wrench for rotating the thermoplastic nut 1.
  • the guide member 470 is attached to the welding apparatus main body 400 via an arbitrary engagement mechanism 472. That is, the guide member 470 may be an attachment member that is removable from the welding apparatus main body 400. Alternatively, the guide member 470 and the welding apparatus main body 400 may be fixed to each other, or the guide member 470 and the welding apparatus main body 400 may be integrally formed.
  • the second modification example and the first modification example can be combined. That is, in the nut welding device in the second modification, the distal portion 410 may include a plurality of protruding portions 430 that protrude toward the central axis C1.
  • FIG. 12 is a schematic cross-sectional view (a cross-sectional view taken along the line EE in the lower view of FIG. 12) of the nut welding device, and the lower side of FIG. The figure is described.
  • the nut welding device 40 includes a rotation mechanism that rotates the guide portion of the guide member 470.
  • the example shown in FIG. 12 is the same as the example shown in FIG.
  • the welding apparatus main body 400 includes a guide part 476 having a guide member inner surface 471 and a rotation mechanism for rotating the guide part 476.
  • the rotation mechanism includes, for example, a motor 474 and a power transmission mechanism 475 such as a gear.
  • the power transmission mechanism 475 transmits the driving force from the motor 474 to the guide part 476, and rotates the guide part 476 around the central axis C1.
  • the thermoplastic nut 1 can be attached to the bolt 3.
  • the rotation of the guide portion 476 stops. Thereafter, by driving the energy generating unit 417, energy is imparted to the thermoplastic nut 1, and as a result, the thermoplastic nut 1 is welded to the bolt 3.
  • a series of operations using the nut welding device 40 enables fastening of a thermoplastic nut to a bolt and welding of a thermoplastic nut to the bolt.
  • the guide member 470 can rotate around the central axis C1, but instead, the entire guide member 470 can be rotated around the central axis C1. It may be rotatable. It is also possible to combine the third modification and the first modification. That is, in the nut welding device in the third modification, the distal portion 410 may include a plurality of protruding portions 430 that protrude toward the central axis C1.
  • the nut welding device 40 may include a control device 480.
  • the control device 480 controls the operation of the energy generation unit 417.
  • the control device 480 calculates the integrated value of energy applied to the thermoplastic nut 1 from the welding device main body 400, and when the integrated value of energy exceeds a preset threshold value, the energy generating unit 417. Stop the operation.
  • control device 480 includes a value corresponding to vibration frequency F, a value corresponding to vibrator amplitude L, and a value corresponding to pushing force P acting on thermoplastic nut 1.
  • a value corresponding to time t is input.
  • the vibration frequency F and the amplitude L may be set via the input device 482 or may be values fixed in the nut welding device 40.
  • the pushing force P (t) may be measured by, for example, a load cell 484 arranged so as to face the inner surface 411 to be in contact with the thermoplastic nut 1.
  • the time t may be measured by the timer 486.
  • the work rate W is obtained by P (t) ⁇ L ⁇ F.
  • the work J is obtained by integrating the work rate W with time.
  • the control device 480 calculates the work J, and stops the operation of the energy generation unit 417 when the work J exceeds a preset threshold value.
  • the control device 480 may perform control so as to stop the operation of the energy generation unit 417 when the integrated value of energy exceeds a preset threshold value.
  • thermoplastic nut in the first modification With reference to FIG. 14, the 1st modification of the nut 1 made from thermoplastics is demonstrated. 14 is a plan view of the thermoplastic nut 1, and the lower side of FIG. 14 is a GG arrow view of the thermoplastic nut 1. FIG. 14
  • the thermoplastic plastic nut 1 includes a nut body 10 and a thin portion 14.
  • the thickness of the thin portion 14 in the direction perpendicular to the central axis C is thinner than the thickness of the nut body portion 10 in the direction perpendicular to the central axis C.
  • the configuration of the nut main body 10 is the same as the configuration of the nut main body 10 in the above-described embodiment (see, for example, FIGS. 1 to 3), and thus repeated description is omitted.
  • the thin portion 14 includes a plurality of thin pieces 14-1 to 14-4.
  • the number of thin-walled pieces is four, but the number of thin-walled pieces may be one, two, three, or five or more.
  • the welding apparatus main body 400 is made of thin-walled pieces so that the central axis of the welding apparatus main-body 400 matches the central axis of the thin-walled portion 14. It becomes difficult to guide.
  • the number of thin pieces is 5 or more, 7 or more, or 9 or more, the welding area of each thin piece to the bolt 3 may be reduced. As a result, each thin piece may be easily peeled off from the bolt 3 after welding.
  • the number of thin-walled pieces is preferably 3 or more and 8 or less, more preferably 3 or more and 6 or less, and still more preferably 3 or more and 4 or less.
  • the plurality of thin-walled pieces are preferably arranged at equal intervals around the central axis C of the nut body 10.
  • the configuration of the thin piece 14-1 is the same as the configuration of the other thin pieces (thin pieces 14-2, 14-3, 14-4, etc.). Therefore, as a representative, the configuration of the thin piece 14-1 will be described, and description of the configuration of the other thin pieces will be omitted.
  • the thin piece 14-1 protrudes upward from the nut body 10. In other words, the thin piece 14-1 protrudes from the nut main body 10 in the first direction along the central axis C of the nut main body 10.
  • Energy vibration energy or thermal energy
  • At least a part of the thin-walled piece 14-1 is welded to the first thread 32 of the bolt 3 by being melted (softened) by receiving energy.
  • the material of the thin piece 14-1 includes a thermoplastic resin (for example, PEEK resin).
  • a thermoplastic resin for example, PEEK resin
  • the material of the thin piece 14-1 and the material of the nut body 10 are the same.
  • the thin piece 14-1 and the nut main-body part 10 are integrally molded.
  • the portion heated by the welding apparatus main body 400 is a thin piece, the energy required for heating can be further reduced.
  • the pressure per unit area acting on the thin portion 14 from the welding apparatus main body 400 becomes larger than when the thin portion is an annular thin portion.
  • the thin portion is an annular thin portion, when a pressure acts on the thin portion 14 from the welding apparatus main body 400, a circumferential compressive stress is generated in the annular thin portion. The compressive stress becomes a resistance force when the annular thin portion 14 is deformed toward the central axis C.
  • the thin piece in the first modification is easily deformed toward the central axis C.
  • each thin piece is likely to bite into the first thread 32 of the bolt.
  • the thermoplastic nut 1 it is possible to reliably prevent the thermoplastic nut 1 from loosening.
  • the thin portion includes a plurality of thin pieces, the volume to be melted (softened) when the nut is welded is smaller than when the thin portion is an annular thin portion. For this reason, the appearance of the nut after welding is good.
  • a thread (third thread 16b-1) is provided on the thin piece 14-1 (the same applies to the other thin pieces).
  • a thread may not be provided on the inner side surface of the thin piece 14-1.
  • the inner surface of the lower region of the thin piece 14-1 may be provided with a screw thread, and the inner surface of the upper region of the thin piece 14-1 may not be provided with a screw thread.
  • the thin piece 14-1 (the same applies to the other thin pieces) includes an outer surface 17-1 and an upper surface 18-1.
  • the outer side surface 17-1 is a surface with which the welding apparatus main body 400 comes into contact. More specifically, the outer surface 17-1 is a surface whose distance from the central axis C decreases stepwise or continuously as it goes upward. For this reason, first, when the welding apparatus main body 400 is moved in the second direction (downward), the alignment between the central axis of the welding apparatus main body 400 and the central axis of the thin portion 14 is facilitated. Become. Second, as the welding apparatus main body 400 moves in the second direction (downward), the melting target area does not increase rapidly but gradually increases.
  • the movement of the welding apparatus main-body part 400 can be performed smoothly.
  • a pressure in the direction toward the central axis C is applied to the thin piece 14-1.
  • welding of the thin piece 14-1 to the bolt 3 is promoted.
  • the outer surface 17-1 is a surface in which the distance from the central axis C gradually decreases as it goes upward, at least the three effects described above are produced as a synergistic effect. .
  • the angle formed between the outer surface 17-1 and the central axis C increases stepwise as it goes upward.
  • the inclination angle is an angle formed between the tangent to the outer surface 17-1 and the central axis C in the cross section passing through the central axis C.
  • the outer surface 17-1 includes an upper inclined surface 17a-1 and a lower inclined surface 17b-1.
  • the inclination angle of the upper inclined surface 17a-1 is larger than the inclination angle of the lower inclined surface 17b-1.
  • the welding apparatus main body 400 quickly contacts the upper region of the outer surface 17-1 (for example, the upper inclined surface 17a-1), so that the central axis of the welding apparatus main body 400 and the thin portion 14 are improved. Positioning with the central axis is quickly performed.
  • the angle formed between the outer surface 17-1 and the central axis C may be continuously increased toward the upper side. That is, the cross section of the outer surface 17-1 (the cross section in the plane passing through the central axis C) may include a curve. Alternatively, the cross section of the outer surface 17-1 (the cross section in the plane passing through the central axis C) may include a curve and a straight line.
  • the height H1 of the thin-walled portion 14 (in other words, the distance between the upper surface 18-1 of the thin-walled piece 14-1 and the upper surface 13a of the nut body 10) is, for example, equal to or greater than the width of one screw thread (in other words, 1 pitch or more of the second thread 12, that is, the distance that the nut moves along the center axis C when the nut is rotated once around the center axis C) and the width of 5 threads or less ( In other words, it is not more than 5 times the pitch of the second thread 12, that is, not more than 5 times the distance that the nut moves along the center axis C when the nut is rotated once around the center axis C).
  • the maximum value of the thickness of the thin piece 14-1 (in other words, (the maximum outer diameter of the virtual circle passing through the plurality of thin pieces-the diameter of the pilot hole formed inside the plurality of thin pieces) / 2) is, for example, 2/3 or less of the thickness of the nut (in other words, (the width of the two surfaces of the nut main body 10 ⁇ the diameter of the pilot hole of the nut main body 10) / 2).
  • thermoplastic nut 1 in the first modification is the same as the welding method using the thermoplastic nut 1 in the above-described embodiment. For this reason, repeated description is omitted.
  • a nut welding device shown in FIG. 8, FIG. 11 or FIG. 12 may be used.
  • FIG. 15 is a schematic perspective view schematically showing how the thermoplastic plastic nut 1 in the first modification is welded to the bolt 3 using the nut welding device. In FIG. 15, the front half of the welding apparatus main body 400 is cut out and described in order to clearly show the state in the central recess 420.
  • thermoplastic plastic nut 1 in the embodiment or the modified example together with the technology described in the background art section.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un écrou en plastique thermoplastique qui présente une section de corps d'écrou 10, qui est pourvue de secondes crêtes de filetage 12 qui sont vissées avec des premières crêtes de filetage 32 d'un boulon 3, et une section à paroi mince 14, qui fait saillie vers le haut à partir de la section de corps d'écrou 10 et qui peut être soudée aux premières crêtes de filetage 32. Le matériau de la section de corps d'écrou 10 comprend une résine thermoplastique et le matériau de la section à paroi mince 14 comprend une résine thermoplastique. L'invention concerne ainsi un écrou en plastique thermoplastique, un dispositif de soudage d'écrou et un procédé de soudage d'écrou avec lesquels un desserrage de l'écrou peut être facilement empêché.
PCT/JP2016/089154 2016-03-31 2016-12-28 Écrou en plastique thermoplastique, dispositif de soudage d'écrou et procédé de soudage d'écrou Ceased WO2017168908A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP16897123.2A EP3401558B1 (fr) 2016-03-31 2016-12-28 Écrou en plastique thermoplastique, dispositif de soudage d'écrou et procédé de soudage d'écrou
CN201680083481.4A CN108884855B (zh) 2016-03-31 2016-12-28 热塑性塑料制螺母、螺母焊接装置及螺母焊接方法
US16/082,003 US11168725B2 (en) 2016-03-31 2016-12-28 Thermoplastic plastic nut, nut welding device and nut welding method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-071486 2016-03-31
JP2016071486A JP6459003B2 (ja) 2016-03-31 2016-03-31 熱可塑性プラスチック製ナット、ナット溶着装置、および、ナット溶着方法

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WO2017168908A1 true WO2017168908A1 (fr) 2017-10-05

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PCT/JP2016/089154 Ceased WO2017168908A1 (fr) 2016-03-31 2016-12-28 Écrou en plastique thermoplastique, dispositif de soudage d'écrou et procédé de soudage d'écrou

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US (1) US11168725B2 (fr)
EP (1) EP3401558B1 (fr)
JP (1) JP6459003B2 (fr)
CN (1) CN108884855B (fr)
WO (1) WO2017168908A1 (fr)

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US20210102572A1 (en) * 2020-12-17 2021-04-08 Yu-Ju Lin Expansion screw based fastening device

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US11517977B2 (en) * 2017-09-15 2022-12-06 Tech-Sonic, Inc. Dual cam servo weld splicer
DE102018124779A1 (de) * 2018-10-08 2020-04-09 Ensinger Gmbh Verfahren zur Herstellung eines Isolierprofils
CN109372876B (zh) * 2018-12-20 2023-09-26 浙江安盛汽车零部件有限公司 一种防松型法兰螺母
CN110306728B (zh) * 2019-06-13 2021-08-06 东南大学 一种frp筋锚固用扩大端头、加工方法及锚固方法
KR102205663B1 (ko) * 2019-12-19 2021-01-21 주식회사 성우하이텍 복합소재 판재 일체형 너트 성형 장치
JP7249301B2 (ja) * 2020-03-17 2023-03-30 株式会社鷺宮製作所 調整ねじ機構の固定構造及び弁装置並びに冷凍サイクルシステム
CN112339355B (zh) * 2020-09-30 2025-01-21 山东中航和辉复合材料有限公司 一种热塑性复合螺母及其制备方法与应用
JP7267646B1 (ja) 2022-02-08 2023-05-02 学 大貫 締結ユニット、ボルトとナットの固定装置、及びボルトとナットの固定方法

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JPH08247128A (ja) * 1995-01-13 1996-09-24 Kayaba Ind Co Ltd ねじ緩み止め装置およびねじ緩み止め方法
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Also Published As

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EP3401558A4 (fr) 2019-02-20
EP3401558A1 (fr) 2018-11-14
JP2017180755A (ja) 2017-10-05
US11168725B2 (en) 2021-11-09
CN108884855A (zh) 2018-11-23
JP6459003B2 (ja) 2019-01-30
EP3401558B1 (fr) 2025-09-17
CN108884855B (zh) 2020-05-12
US20200232498A1 (en) 2020-07-23

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